1. Instruction manual for the Autogen 1700;Autogenic Systems, Inc.,1975
2. Progressive Relaxation Training: A Manual for the Helping Professions;Bernstein,1973
3. Clinical applications of biofeedback;Blanchard,1977
4. Critical procedural variables related to the physiological effects of progressive relaxation: A review;Borkovec;Behav. Res. Ther.,1979
5. Computational Handbook of Statistics;Brunning,1977